An infinite (and ironic) loop, as originally observed by the webcomic XKCD (#140), where having leftovers of one nacho ingredient encourages you to buy another nacho ingredient to make nachos. Naturally, this leaves an excess amount of another nacho ingredient, continuing the cycle. This situation is known to be delicious, and is a practical example of chipiculty.

I have leftover cheese, I should get chips and make nachos. ... I have leftover chips, I should get cheese and make nachos. I am trapped in a delicious cycle!